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Friday, September 24, 2010

The Trimerus delphinocephalus trilobite of the Silurian Period. This first image is from a 1910 book. The picture is to give you an idea of what the entire trilobite looked like. Today's highlighted fossil is just a fragment of one of these trilobites (the rear section or pygidium).

Trimerus delphinocephalus (Green)

North American Index Fossils by Amadeus Grabau & Hervey Shimer

Volume II, 1910

Trilobite found in Niagaran of New York, Ontario, & Indiana

Image from page 317

This is a beautiful fossil fragment just recently found in the Waldron Shale of Clark County, Indiana. Select the image to see a larger version and note the detail still left on the fossilized outer shell. It has such a beautiful color. Preservation is such that one can run their finger over the shell and feel the bump/segment details. The fossil needs a little work with an engraver and sand blasting of little bits of matrix.

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About Me

I am an amateur paleontologist who studies marine invertebrate fossils in the Louisville, Kentucky, USA area. We have fossils from the Ordovician, Silurian, Devonian and Mississippian (Carboniferous) Periods of the Paleozoic era.
Contact: louisvillefossils@gmail.com